Dorhea LM2596 DC-DC Buck Converter Step-Down Regulator 4.0-40V to 1.25-37V DC 36V to 24V to 12V to 5V Volt Power Supply Module with LED Voltmeter Display Compatible with Car Motor Buck

Description

Specification:
Module Model: LM2596 Buck Converter + Voltmeter
Cutting Size: 66.04mm x 35.05mm
Input Voltage: DC 4.2-40V
Output Voltage: 1.25V~37V (continuously adjustable, the input voltage must be 1V higher than the output voltage)
Output Current: 2A (normal and stable), 3A Max
Ripple Frequency: About 150Khz
Ripple Peak: About 100mV
Voltage Meter Error: ± 0.1V

Wiring connection:
IN+: connect IN+ to your Input Positive
IN-: connect IN- to your Input Negative
Out+: connect OUT+ to your Output Positive
Out-: connect OUT- to your Output Negative

Applications:
Experiment teaching
Temporarily set up power supply in the outdoor
Car(audio, electric fan)power supply

The self-calibration method of buck converter voltmeter:
1.When the voltmeter shows output voltage, long press the right button for 2 seconds, then release, voltmeter and “”””OUT”””” LED flash in synchronization.
Now the voltmeter enters into output voltage calibration mode. Similarly, when the voltmeter shows input voltage, long press the right button for 2 seconds, then release, voltmeter and “”””IN”””” LED flash in synchronization, now the voltmeter enters into input voltage calibration mode.
2. Touch the right button, the voltage rises a unit. Due to a unit is less than 0.1 V, so you need to continuously press 5 times to see that the voltmeter changes 0.1 V.
3. After calibration, long press the right button for 2 seconds, then release. Now the voltmeter exits the voltage calibration mode. All the parameters will be saved automatically.

Package includes:
5 X DC-DC Volt Buck Converter